... to some great upsets. USC, California, and Oregon have all been on the brink of a top ranking when an unranked foe has beaten them, ending all possible national title hopes. 

Obviously, nothing is written in stone, and games aren't played on paper. Teams are breaking in new quarterbacks, new defenses, and even new coaches. Every team in the Pac-10 has questions unanswered. 

But going into the Pac-10 season, four teams seem to be above the rest: USC, California, Oregon, and Oregon State. 

Hopefully, these upset predictions can help forecast what might play out in the Pac-10 this year.

 

5. Oregon at Arizona (Nov. 21)

Two years ago, the mighty Ducks, led by ...

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